Combined plow and pulverizing-machine.



W. W. CURTIS.

COMBINED PLOW AND PULVERIZING MACHINE.

APPLICATION FILED APR. 15, 1912.

Patented Aug. 19, 1913.

4 SHEETS-SHEET 1 INVENTOR.

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COLUMBIA PLANOORAPH co.,wAsmNo'roN. n. c.

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00111311131) PLOW AND PULVERIZING MACHINE.

APPLIUATION FILED APR. 15, 1912. 1,070,423, Patented Aug. 19, 1913.

4 SHEETS-$HEET 2.

mmlflaiif WWW Wfm ATTORNEY.

I/V/T/VESSES COLUMBIA PLANOGRAPH CO.,WASHINGTON. n c,

W. W. CURTIS.

COMBINED PLOW AND PULVERIZING MACHINE.

APPLIOATION FILED APR. 15, 1912.

LO'YOAZZB, Patented Aug. 19, 1913.

4 SHEETS-SHEET 3.

)LUMBIA PLANOORAPH c0.,wAsH|NG'roN, n c.

Y W. W. CURTIS. COMBINED PLOW ANDPULVERIZING MACHINE.

I APPLICATION FILED APR.15, 1912. 1,070,423.

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WILLIAM W. CURTIS, OF INDEPENDENCE, MISSOURI, ASSIGNOR OF ONE-HALF TOEIVISLEY CURTIS, OF INDEPENDENCE, MISSOURI.

COMBINED PLOW AND PULVERIZING-MACHINE.

Specification of Letters Patent.

Patented Aug. 19,1913.

finely pulverized and quickly and economically placed in condition forplanting.

A further object of my invention is to provide a machine with whichbugs, worms, and grass and weed seeds may be destroyed at the same timeand by the same means with which the ground is placed in condition forplanting.

My invention is particularly adapted for the purpose of destroying burseeds, such as p landsides 12 adjacent the forward ends the seed of thecockle bur.

My invention provides a machine by which the earth is plowed and finelypulverized at one operation.

In the accompanying drawings which illustrate the preferred form of myinvention, Figure 1 is a side elevation of my improved machine shown inthe operative position. Fig. 2 is a plan view of the machine, the newand last furrows which have been plowed being shown in dotted lines.Fig. 3 is a vertical section on the line a-b of Fig. 2. Fig. 4: is across section on the line 0-6Z of Fig. 3. Fig. 5 is a front View of theplow and a portion of the conveyer casing. Fig. 6 is a vertical sectionon the line cf of Fig. 1. Fig. 7 is a plan view of the lower pulverizingmember. Fig. 8 is a bottom View of the upper pulverizing member. Fig. 9is a side elevation of the lower end of the shaft carrying the lowergrinding memher and the bearing in which said shaft is supported.

Similar reference characters designate similar parts in the differentviews.

1 designates a carrying frame of any suitable form and having bearings 2in which is rotatively mounted a horizontal axle 3 to which are securedtwo carrying wheels d and 5. The wheel 4 is a driving wheel theperiphery of which is preferably provided with teeth 6. The wheel 4 ispreferably of greater diameter than the wheel 5, as the wheel 4 isdesigned to run in a furrow, while the wheel 5 is designed to run on theunplowed ground. The carrying frame is provided also with a third wheel7 rotatively mounted on an axle 8 fixed in the lower end of a fork 9,the upper end of which has a vertical shank 10 pivoted in the body ofthe frame to the rear of and between the wheels 4 and 5 and in alinementwith the plow comprising a shear 11 and two landsides 12 and located,preferably between the wheels 1 and 5. Pivotally secured at their lowerends to the rear ends of the land sides 12 respectively are two verticallinks 13 the upper ends of which are respectively pivoted to twodepending bars 14: secured to the frame 1.

Two links 15 are provided each at their lower ends with a longitudinalrow of holes 16 each adapted to receive a horizontal bolt 17. The bolts17 respectively extend through holes provided respectively in thethereof. The upper ends of the links 15 are pivoted by horizontal bolts18 to bars 19 respectively which are secured to the frame 1. By placingthe bolts 17 in different holes 16 the forward end of the share 11 maybe vertically adjusted so as to plow furrows of different depths.

In order that the plow may be swung so as to clear the shear 11 clear ofthe ground, the following mechanism is provided. Two bars 20 have theirlower ends pivoted respectively to the bolts 17. The upper ends of saidbars 20 are pivoted by a horizontal bolt 21 to one arm 22 of a leverwhich has a pivotal support on a horizontal bar 23 mounted in theframe 1. The other arm 24 of said lever carries suitable means forreleasably locking said arm to an arcuate notched plate 25 secured tothe frame 1.

The rear open end of the plow is adapted to discharge the earth plowedup by it into an opening 26 of a vertical casing 27 of a conveyermechanism. Rotatively mounted in the casing 27 is a screw 28, the lowerend of which is rotatively mounted in the lower end of the casing 27 andthe upper end of which is rot-atively mounted in a bearing 29 secured tothe frame 1. The upper end of the casing 27 is provided with arearwardly inclined chute 30 which discharges into a hopper 31 of apulverizing mechanism. The hopper 31 is secured to the frame 1 and has alower flaring end to the inner side of which is secured an annularribbed grinding or pulverizing plate or member 32. Extending axiallythrough the hopper 31 is a rotary vertical shaft 33 the upper end ofwhich is rotatively mounted in a bracket 34 secured to the frame 1. Thelower end of the shaft 33 is rotatively mounted in a bearing secured tothe frame 1 by means of bolts 36 mounted in vertical slots 37 providedin the bearing 35. A conical pulverizing lower member 38 is verticallyadjustable on the shaft 33 and has mounted in it a set screw 39 theinner end of which is mounted in a longitudinal groove 40 provided, asshown in Fig. 3 in the shaft 33. The member 38 is normally forcedupwardly into the operative position by a coil spring 41 which encirclesthe shaft 33 and has its lower end bearing against a bevel gear wheel 42secured on the shaft 33 by a set screw 43. The set screw 39 by strikingthe upper end of the groove 40 limits the upward movement of the member38. The upper side of the member 38 is ribbed and is provided near itsperiphery with an annular ribbed ring 44 spaced apart from the ribbedmember 32 with which it cooperates to pulverize earth discharged intothe hopper 31 from the chute 30.

Meshing with the bevel gear wheel 42 is a bevel gear wheel 45 which issecured to a horizontal shaft 46 rotatively mounted in bearings 47secured to the frame 1. Secured to the shaft 46 is a sprocket wheel 48which is connected by a chain belt 49 with a sprocket wheel 50 securedto the axle 3. Secured to the shaft 33 adjacent to its upper end is abevel gear wheel 51 which meshes with a bevel gear wheel 52 secured to ahorizontal shaft 53 rotatively mounted in the bracket and in a bearing54 secured to the frame 1. The bevel gear wheel 51 is secured to theshaft 33 by a set screw By loosening the set screws 55 and 43, the shaft33 may be vertically adjusted with the member 38 to change the degree offineness with which the earth is pulverized. The spring 41 serves as ayielding support for the member 38, so that when a rock or unbreakablesubstance passes between the grinding members 32 and 44, the member 38will yield so as to permit the hard substance to be discharged withoutinjury to the parts. Se-

J cured to the shaft 53 is a sprocket wheel 56 which is connected by achain belt 57 with a sprocket wheel 58 secured on the axle 3. To rotatethe screw 28 it has secured to its upper end a bevel gear. wheel 59which meshes with a bevel gear wheel 60 which is secured to a horizontalshaft 61 rotatively mounted in the bearing 29 and in a bearing 62secured to the frame 1. Secured to the shaft 61 is a sprocket wheel 63which is connected by a chain belt 64 with a sprocket wheel 65 securedto the axle 3. Secured by a set screw 66 on the shaft 33 is a hub 67having radial beater arms 68 adapted to pass between inwardly extendingarms of U shaped brackets 69 which are secured to the inner wall of thehopper 31 above the member 38. The arms (38 cooperate with the arms ofthe brackets 69 to break up lumps of earth entering the hopper 31, sothat such lumps will be separated into portions small enough to passbetween the grinding members 32 and 44. Doors 70 and 71 normally closetwo openings provided respectively in the for ward and rear sides of thecasing 27 adjacent to the upper and lower ends thereof. By opening thesedoors access may be had to the interior of the conveyer casing. Thewheel 7 is disposed so as to track in the fur row made by the plow, thedriving wheel 4 being disposed so as to track in the furrow last made bythe plow and indicated in dotted lines :0 in Fig. 2, the furrow in whichthe wheel 7 runs being represented by the dotted lines in Fig. 2.

Any suitable means may be employed to propel the machine. Fordistributing the pulverizedv earth in the furrow in which the drivingwheel 4 is running, I provide a chute 72 which is secured to the frame 1andhas its mouth disposed so as to discharge the pulverized earth to therear of the wheel 4 and laterally to the right of the furrow which isbeing made at the time by the plow.

In operating my invention, the machine is propelled forwardly, that isto the right as viewed in Figs. 1, 2 and 3, and the lever arm 24 isswung so as to permit the plowshare 11 to drop to the position shown inFig. 3. and in Fig. 1.

As the machine moves forwardly the shear 11 will cut a furrow and theearth will be deposited in the lower end of the casing 27 through whichit will be carried upwardly by the screw 28 and discharged by the chute30 into the hopper 31. The lumps of earth will be broken by the arms 68and brackets 69 and will be deposited between the grinding members 32and 44 bet-ween which the earth will be finely pulverized, after whichthe pulverized material will fall into the chute 72 and by it bedeposited on the ground at the rear of the driving wheel 4 and in thefurrow in which such wheel is running. The turning of the wheels 4 and 5and axle 3 will cause the screw 28, and member 38 to be rotated by meansof the mechanism hereinbefore described.

The worms, bugs, burs of grass and weeds contained in the ground whichis plowed and pulverized by the machine will be destroyed during thepulverizing operation, as will be seeds of grass and weeds, and theearth, after being so treated, will be in suitable condition forplanting. By the use of my machine the cost of working the ground willbe materially reduced and the ground will be placed in much betterplanting condition than is the case with ground treated in the usualmanner.

I do not limit my invention to the structure shown and described, asmodifications, within the scope of the appended claims, may be madewithout departing from the spirit of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is

1. In a combined plow and pulverizing machine, a wheeled carrying framehaving a driving wheel, a plowing means carried by the frame andarranged to plow a furrow at one side of the driving wheel, pulverizingmeans carried by the frame, means actuated by said wheel for operatingthe pulverizing means, means for conveying plowed earth from the plow tothe pulverizing means, and

distributing means for discharging the pulverized earth to one side ofsaid furrow.

2. In a combined plow and pulverizing machine, a wheeled carrying framehaving a driving wheel, plowing means arranged to plow a furrow at oneside of said wheel, pulverizing means, means actuated by the said wheelfor operating the pulverizing means, means for conveying plowed earthfrom the plow to the pulverizing means, and distributing means fordischarging the pulverized earth to one side of said furrow and to therear of said wheel.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

WILLIAM IV. CURTIS.

Witnesses TARREN D. House, E. B. I-IoUsn.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

